Sometimes it is associated with polymenorrhea(Frequent flow, cycles of ≤21 days)Causes of menorrhagia are Hypothyroidism, Endometrial proliferation or hyperplasia like ovarian tumor
and polycystic ovarian disease, endometrial polyps
and neoplasia, endometriosis, fibroids and uterine sarcomas.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided.